Yep, 74's a little on the low-side. (Of course, in winter...that feels warm!)
Shelley's had it as low as 73, thats OK if she wants to do a fast cool-down...rid of the humidity.
I've been setting it at 77, and one or two of the ceiling-fans on low for a few hours in early-afternoon.
If Shelley comes home and has a hotflash or somethin'...I can always go put on my insulated coveralls, lol.